Application

Outgoing

Incomming

Notes

HTTP

80

SSL (secure Socket Layer)

443

FTP

21

Telnet

23

IMAP

143

SIMAP

933

IMAP thru SSL

SSL/POP2:

995

POP3 thru SSL

POP3

110

SMTP

25

SSH

22

FINGER

79

IDENT

103

NNTP

119

Network News Transfer Protocol

GOPHER

70

NTP (time protocol)

123

PPTP (Microsoft VPN)

1723

Carbon Copy 32

1023-1680

CITRIX

1494

CU-SeeMe

7648

Version: Cornell 1.1

CU SeeMe

1748, 24032

Version: White Pine 3.1.2

CU SeeMe

1748, 24032

Version: White Pine 4.0 (Pro)

Direct Connect

375-425

ICQ

DMZ

DMZ

Place computer in DMZ.  Not required for outgoing chat.

LapLink

1547

Lotus Notes

1352

NetMeeting

DMZ

DMZ

Many routers will require DMZ setting for both outgoing and incomming.  Try your router and see.

NetMeeting

1720, 1503

Some new routers can support NetMeeting servers by port forwarding. Check your doc's or try it.

PC Anywhere

22, 5631-5632

Real Player

DMZ

Support varies

Remote Anything

3996-4000

Shiva VPN

2233

2233

Virtual Network Computing - VNC

5500, 5800, 5900

VDO Live

DMZ

Bootstrap

67

Server

Bootstrap

68

Client

Netbios

137

Name Service

Netbios

138

Datagram Service

Netbios

139

Session Service

SUN Remote Procedure Call

111